We are working on a project that has a chilled water plant that consists of variable speed chillers and pumps with associated VFDs.  Both the integrated chiller controls and the pump VFDs have the capability to meter energy consumption and demand. It is our intent to report this information the the BAS along with the other building sub-meters for compliance with the advance energy meter credit.  Is it acceptable to utilize the on-board energy monitoring capability of these devices as part of our strategy to comply with the advance energy metering credit, or do redundant stand alone energy meters need to be installed?